Sample

This is lisenced as CC0.

import random

import folium
from folium.plugins import MarkerCluster

cluster = MarkerCluster(
    name='cluster',
    icon_create_function = """function(cluster) {
const markers = cluster.getAllChildMarkers();
return markers[0].getIcon();
}""",
    max_cluster_radius = 80,
)

for _ in range(10_000):
    folium.Marker(
        [random.uniform(-10.0, 10.0), random.uniform(-10.0, 10.0)],
        popup="<p>dummy data increases data size!</p>"
    ).add_to(cluster)

m = folium.Map(location=[0, 0], zoom_start=6)
m.add_child(cluster)

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